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20” LCD TV
Hyundai HLCD-A20W4
1
Service
Service
Service
TABLE OF CONTENTS
Description
Page Description Page
SAFETY NOTICE
ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE
CHASSIS AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING
ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGE
Table Of Contents.......……..............................…........1
Revision List.…........................................……......2
Important Safety Notice.……..................……......3
1.General Specifications..............................………........4
2.Operating Instructions………..…………………….......6
2.1.The Use of Remote Control…................……...........6
2.2.To Use the Menu………..............................…...........7
2.3.LCD TV Description…….…..............……...............14
2.4.Interface Connector……............................…...........14
3.Precautions and Notices…............……………............15
3.1.Assembly Precaution…............………….................15
3.2.Operating Precaution…………...........................15
3.3.Storage Precaution…......………………..................15
3.4.High Voltage Warning.…..........…………................15
4.Input/Output Description……..…………… ...........16
4.1.D-SUB Connector……...…………………....….......16
4.2.Factory Preset Display Modes……………..….......17
5.Front Panel Control Knobs…....................................18
6.Repair Flow Chart…….............................................19
7.Mechanical Instructions……………................25
8.PCB Layout..………….......................................29
8.1.Main Board……….....…….................................29
8.2.Power Board…...………...................................31
8.3.Tuner Board…………........................................33
8.4.IR Board……………….......................................36
8.5.Key Board………………......................................36
8.6.Headphone Board………..................................37
9.Block Diagram………………..............................38
10.Schematic Diagram………………...............…39
10.1.Main Board.............................................39
10.2.Power Board....……....................................52
10.3.Tuner Board....……....................................53
11.Exploded View………..….......................................57
12.BOM………………………………………….............58
CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING
Summary of Contents for HLCD-A20W4
Page 29: ...20 LCD TV Hyundai HLCD A20W4 29 8 PCB Layout 8 1 Main Board 715T1802 2...
Page 30: ...20 LCD TV Hyundai HLCD A20W4 30...
Page 31: ...20 LCD TV Hyundai HLCD A20W4 31 8 2 Power Board 715T1599 3...
Page 32: ...20 LCD TV Hyundai HLCD A20W4 32...
Page 33: ...20 LCD TV Hyundai HLCD A20W4 33 8 3 Tuner Board 715T1747 1 VS...
Page 34: ...20 LCD TV Hyundai HLCD A20W4 34...
Page 35: ...20 LCD TV Hyundai HLCD A20W4 35...
Page 36: ...20 LCD TV Hyundai HLCD A20W4 36 8 4 IR Board 715T2132 1 8 5 Key Board 715T1822 3...
Page 37: ...20 LCD TV Hyundai HLCD A20W4 37 8 6 Headphone Board 715T2185 1...
Page 57: ...20 LCD TV Hyundai HLCD A20W4 57 11 Exploded View...
Page 82: ...20 LCD TV Hyundai HLCD A20W4 82 F960 084T 56 4W FUSE 4A...